Data Sheet
ULTRA LOW QUIESCENT CURRENT CMOS LDO
General Description
The AP2138/2139 series are CMOS-based positive
voltage regulator ICs. Each of these ICs consists of a
voltage reference, an error amplifier, a resistor network
for setting output voltage and a current limit circuit for
current protection.
The difference between AP2138 and AP2139 is the
AP2139 has an enable circuit with a quick discharge
function.
These ICs feature high output voltage accuracy,
extremely low quiescent current and low dropout volt-
age which make them ideal for use in various power
sources for portable applications.
The AP2138/2139 series have 1.2V, 1.4V, 1.5V, 1.8V,
2.5V, 2.8V, 3.0V, 3.3V, 3.6V and 4.0V fixed output
voltage versions.
The AP2138 series is available in SOT-23-3 and SOT-
89 packages, AP2139 series is available in SOT-23-5
package.
AP2138/2139
Features
·
·
·
·
·
Ultra-low Quiescent Current: 1.0μA Typical
Output Voltages: 1.2V, 1.4V, 1.5V, 1.8V, 2.5V,
2.8V, 3.0V, 3.3V, 3.6V and 4.0V
High Output Voltage Accuracy:
±2%
Output Current: 250mA
Low Dropout Voltage:
25mV Typical at I
OUT
=10mA and V
OUT
=3V
200mV Typical at I
OUT
=100mA and V
OUT
=3V
Line Regulation: 6mV Typical
Load Regulation: 25mV Typical
Low Output Voltage Temperature Coefficient:
±100ppm/
o
C
Low Standby Current: 0.1μA Typical (AP2139)
Active Quick Output Discharge (AP2139)
Logic-controlled Enable (AP2139)
·
·
·
·
·
·
Applications
·
·
·
·
·
·
·
Battery Powered Equipment
Reference Voltage Sources
Cameras, Video Cameras
Portable AV Systems
Mobile Phones
Communication Tools
Portable Games
SOT-23-3
SOT-23-5
SOT-89
Figure 1. Package Types of AP2138/2139
Jul. 2012 Rev. 2. 3
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BCD Semiconductor Manufacturing Limited
Data Sheet
ULTRA LOW QUIESCENT CURRENT CMOS LDO
Pin Configuration
K Package
(SOT-23-5)
AP2138/2139
N Package
(SOT-23-3)
2
V
OUT
V
IN
GND
1
2
3
5
V
OUT
V
IN
3
1
GND
CE
4
NC
R Package
(SOT-89)
3
2
1
RA Package
(SOT-89)
V
OUT
V
IN
GND
3
2
1
V
IN
GND
V
OUT
Figure 2. Pin Configuration of AP2138/2139 (Top View)
Pin Description
Pin Number
Pin Name
SOT-23-3
1
2
3
SOT-89 (R)
1
3
2
SOT-89 (RA)
2
1
3
SOT-23-5
2
5
1
3
4
GND
V
OUT
V
IN
CE
NC
Ground
Regulated output voltage
Input voltage
Active high enable input. Logic high=enable, logic
low=shutdown
No connection
Function
Jul. 2012 Rev. 2. 3
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BCD Semiconductor Manufacturing Limited
Data Sheet
ULTRA LOW QUIESCENT CURRENT CMOS LDO
Functional Block Diagram
AP2138/2139
V
IN
3 (2)[3]
2 (3)[1]
V
OUT
VREF
CURRENT LIMIT
1 (1)[2]
GND
AP2138
A(B)[C]
A: SOT-23-3
B: SOT-89 (R)
C: SOT-89 (RA)
V
IN
1
5
V
OUT
VREF
CURRENT
LIMIT
CE
3
2
GND
AP2139
Figure 3. Functional Block Diagram of AP2138/2139
Jul. 2012 Rev. 2. 3
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BCD Semiconductor Manufacturing Limited
Data Sheet
ULTRA LOW QUIESCENT CURRENT CMOS LDO
Ordering Information
AP2138/2139
AP213X
Circuit Type
8: AP2138
9: AP2139
A: Active High
with Built-in Resistor
Blank: No Enable Function
Package
N: SOT-23-3
K: SOT-23-5
R/RA: SOT-89
Package
Temperature
Range
Condition
1.2V
1.4V
1.5V
1.8V
SOT-23-3
-40 to 85
o
C
2.5V
2.8V
3.0V
3.3V
3.6V
4.0V
1.2V(R)
1.4V (R)
1.5V (R)
SOT-89
-40 to 85
o
C
1.8V (R)
2.5V (R)
2.8V (R)
3.0V (R)
3.3V (R)
-
G1: Green
TR: Tape and Reel
1.2:
1.4:
1.5:
1.8:
2.5:
2.8:
3.0:
3.3:
3.6:
4.0:
Fixed Output 1.2V
Fixed Output 1.4V
Fixed Output 1.5V
Fixed Output 1.8V
Fixed Output 2.5V
Fixed Output 2.8V
Fixed Output 3.0V
Fixed Output 3.3V
Fixed Output 3.6V
Fixed Output 4.0V
Packing
Type
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Part Number
Marking ID
AP2138N-1.2TRG1 GA3
AP2138N-1.4TRG1 GG1
AP2138N-1.5TRG1 GG2
AP2138N-1.8TRG1 GG4
AP2138N-2.5TRG1 GG5
AP2138N-2.8TRG1 GG6
AP2138N-3.0TRG1 GG3
AP2138N-3.3TRG1 GG7
AP2138N-3.6TRG1 GG8
AP2138N-4.0TRG1 GE9
AP2138R-1.2TRG1 G42C
AP2138R-1.4TRG1 G42D
AP2138R-1.5TRG1 G42E
AP2138R-1.8TRG1 G42F
AP2138R-2.5TRG1 G42G
AP2138R-2.8TRG1 G42H
AP2138R-3.0TRG1 G42J
AP2138R-3.3TRG1 G42K
Jul. 2012 Rev. 2. 3
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BCD Semiconductor Manufacturing Limited
Data Sheet
ULTRA LOW QUIESCENT CURRENT CMOS LDO
Ordering Information (Continued)
Package
Temperature Range
Condition
1.2V (RA)
1.4V (RA)
1.5V (RA)
SOT-89
-40 to 85
o
C
1.8V (RA)
2.5V (RA)
2.8V (RA)
3.0V (RA)
3.3V (RA)
Active High with Built-in Resistor
Active High with Built-in Resistor
Active High with Built-in Resistor
SOT-23-5
-40 to 85
o
C
Active High with Built-in Resistor
Active High with Built-in Resistor
Active High with Built-in Resistor
Active High with Built-in Resistor
Active High with Built-in Resistor
AP2138/2139
Part Number
Marking ID
Packing
Type
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
AP2138RA-1.2TRG1 G13L
AP2138RA-1.4TRG1 G13M
AP2138RA-1.5TRG1 G13N
AP2138RA-1.8TRG1 G13O
AP2138RA-2.5TRG1 G13P
AP2138RA-2.8TRG1 G33J
AP2138RA-3.0TRG1 G37J
AP2138RA-3.3TRG1 G41J
AP2139AK-1.2TRG1 G7R
AP2139AK-1.4TRG1 G6L
AP2139AK-1.5TRG1 G6M
AP2139AK-1.8TRG1 G6N
AP2139AK-2.5TRG1 G6P
AP2139AK-2.8TRG1 G6Q
AP2139AK-3.0TRG1 G6J
AP2139AK-3.3TRG1 G6R
BCD Semiconductor's products, as designated with "G1" suffix in the part number, are RoHS compliant and Green.
Jul. 2012 Rev. 2. 3
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BCD Semiconductor Manufacturing Limited
